Best X1-CRT Brakes?

Hey everyone, I am looking for the best brakes for my BL Savage that I am working on. I am posting this in the truggy section because I am using an X1-CRT center diff, so I want the brakes to match. I am looking for the brakes with the most stopping power that will not fade. I've done some searching around and so far I have found these: http://www.amainhobbies.com/product_...ducts_id/13086
I will probably be doubling up on each side of the diff.
So the question is: are fiber brakes better than metal ones?
And will the brakes I posted be sufficient?
Thanks.